Google OpenId: Nenhum endpoint OpenID encontrado (intermitente)
Normalmente, o uso do Google OpenId funciona bem, milhares de vezes por dia, depois começa a dar errado de forma intermitente e o tempo limite é de cerca de uma hora (algumas solicitações validam, mas não todas). Validação repetida acabará por funcionar.
Mensagens de erro são:
<code>Event code: 200000 Event message: No OpenID endpoint found. : https://www.google.com/accounts/o8/id Sequence contains no elements </code>
Adicionando nos rendimentos do log4net:
<code>DotNetOpenAuth.Yadis: Error while performing discovery on: "https://www.google.com/accounts/o8/id": DotNetOpenAuth.Messaging.ProtocolException: Error occurred while sending a direct message or getting the response. ---> System.Net.WebException: The operation has timed out at System.Net.HttpWebRequest.GetResponse() at DotNetOpenAuth.Messaging.StandardWebRequestHandler.GetResponse (HttpWebRequest request, DirectWebRequestOptions options) in c:\...\Dot...Core\Messaging\StandardWebRequestHandler.cs:line 127 --- End of inner exception stack trace --- at DotNetOpenAuth.Messaging.StandardWebRequestHandler.GetResponse (HttpWebRequest request, DirectWebRequestOptions options) in c:\...\Dot...Core\Messaging\StandardWebRequestHandler.cs:line 175 at DotNetOpenAuth.Messaging.UntrustedWebRequestHandler.GetResponse (HttpWebRequest request, DirectWebRequestOptions options) in c:\...\Dot...Core\Messaging\UntrustedWebRequestHandler.cs:line 250 at DotNetOpenAuth.Yadis.Yadis.Request (IDirectWebRequestHandler requestHandler, Uri uri, Boolean requireSsl, String[] acceptTypes) in c:\...\Dot...OpenId\Yadis\Yadis.cs:line 172 at DotNetOpenAuth.Yadis.Yadis.Discover (IDirectWebRequestHandler requestHandler, UriIdentifier uri, Boolean requireSsl) in c:\...\DotNetOpenAuth.OpenId\Yadis\Yadis.cs:line 63 at DotNetOpenAuth.OpenId.UriDiscoveryService.Discover (Identifier identifier, IDirectWebRequestHandler requestHandler, Boolean& abortDiscoveryChain) in c:\...\DotNet...OpenId\OpenId\UriDiscoveryService.cs:line 51 at DotNetOpenAuth.OpenId.IdentifierDiscoveryServices.Discover (Identifier identifier) in c:\...\Dot...OpenId\OpenId\IdentifierDiscoveryServices.cs:line 58 at DotNetOpenAuth.OpenId.RelyingParty.AuthenticationRequest.Create (Identifier userSuppliedIdentifier, OpenIdRelyingParty relyingParty, Realm realm, Uri returnToUrl, Boolean createNewAssociationsAsNeeded) in ...OpenId.RelyingParty\OpenId\RelyingParty\AuthenticationRequest.cs:line 364 </code>
E
<code>DotNetOpenAuth.Http WebException: Timeout from https://www.google.com/accounts/o8/id, no response available. </code>
Alguma ideia?